Titel: Decoding the Universe
Abstract: Gravitational waves travel the Universe. They were observed for the first time in 2015. This constitutes the beginning of a new era, where these waves tell us about their distant sources such as the merger of two black holes or neutron stars. Gravitational waves carry information about regions that are impenetrable for any telescope. These waves were predicted by and are investigated in the General Theory of Relativity. In 1915, Albert Einstein developed the General Theory of Relativity unifying space, time and gravitation into a curved spacetime. Whereas important milestones were set earlier in the last century, only in recent decades, mathematical methods and observational instruments have been developed to delve deeper into these intricate structures. It is gravitation that `curves' the world. We will explore what happens when a gravitational wave packet passes. The Universe even `remembers' the passage of such a wave train. By analyzing the Einstein equations in various physical settings, we extract information on the structures of gravitational radiation. At the core of these methods, we make use of the deep interaction of analysis, geometry and physics in the Einstein equations.
Zur Vortragenden: Lydia Bieri ist Professorin für Mathematik und Direktorin des Michigan Center for Applied and Interdisciplinary Mathematics an der University of Michigan. Sie ist eine bedeutende Mathematische Physikerin unserer Zeit und hat u.a. wichtige Beiträgen geleistet zu unserem Verständnis von Gravitationswellen und den Spuren, die diese hinterlassen. Sie wurde mit einem NSF Career Award ausgezeichnet und zum Fellow der Simons Foundation, der American Physical Society und der American Mathematical Society ernannt.